The 72,000,000-year-old bones of a baby dinosaur have given scientists added proof that birds may be the direct descendants of dinosaurs. The presence of growth plates--discs of cartilage that occur near the ends of long bones and enable bones to grow in length-in dinosaur fossils not ...
[A] The opinion that birds were the direct descendants of dinosaurs gives the world a shock. [A]鸟类是恐龙直接后裔,这个观点让世界很震惊。 [B] Palaeontologists have get consensus on the specie’s transition from the land to the sky. [B]古生物学家就该物种从地上到空中的转化这个问题上达成了...
aWhen the first humans appeared on earth, dinosaurs have been extinct for several million years! It is through the discovery of fossil dinosaur. 当第一个人在地球上出现,恐龙是绝种几百万年! 它是通过在化石恐龙的发现上。[translate] a你能介绍几个你的朋友么 正在翻译,请等待...[translate] ...
"The door just opens up to a whole avenue of research that involves anything extinct," said Matthew T. Carrano, curator of dinosaurs at the Smithsonian's National Museum of Natural History. The new finding adds weight to the idea that today's birds are descendants of dinosaurs. While dinosau...
Which of the following is an assumption on which the argument relies? A、The birdlike dinosaurs have no living descendants. B、There are no flightless dinosaur species that have the distinctive structural features shared by birds and birdlike dinosaurs. C、There are no birdlike dinosaur fossils...
B. If birds are in fact the descendants of dinosaurs, then it can be argued that the dinosaurs never really died out. C. Flying dinosaurs such as the Pteranodon, which is not thought to have been related to modern birds, do not appear to have had feathers. D. Soft tissues such as ...
Biologist and earth scientist Peter Ward now accounts for the remarkable indestructibility of dinosaurs by connecting their unusual respiration system with their ability to adapt to Earth's changing environment--a system that was ultimately bequeathed to their descendants, birds. By tracing the ...
Alfred Hitchcock’s “The Birds” Discussing the Origin of Birds Suu Suu Zhou, Andy Gomez, Victor Garcia, Mona Moshfegh AP Biology Period 4 Background Information Birds are descendants of theropod dinosaurs. Charles Darwin suggested that all species are descended with modification from other species...
Paleontologists agree that birds are the direct descendants of dinosaurs. So why aren't any modern-day birds the size of T. Rex or Apatosaurus?
B.If birds are in fact the descendants of dinosaurs, then it can be argued that the dinosaurs never really died out. C.Flying dinosaurs such as the Pteranodon, which is not thought to have been related to modern birds, do not appear to have had feathers. ...